C/2021 C3 Catalina
- C/2021 C3 Catalina 2021 April 18 06:33 UT, 6x300s, m=18.3, 12" coma, 11" SCT f/6.4, STF-8300M,
Mike Olason, Tucson Arizona
- C/2021 C3 Catalina 2021 April 16 22:02 UT, 9 x 120 sec, Orion Optics AG16 0.4-m f/3.8 Newton, SBIG STL-6303E, B96-BRIXIIS Observatory Kruibeke Belgium
Erik Bryssinck
- C/2021 C3 Catalina 2021 March 14 22.15 UT, 10x100sec. 12" f=4 QHY 600
Michael Jäger
- C/2021 C3 Catalina 2021 March 08 00:45 UT, 12x90sec, 16" f/2.5, CDS-5D
Roland Fichtl
- C/2021 C3 Catalina 2021 March 06 00.57 UT, 14x100sec. 12" f=4 QHY600
Michael Jäger
- C/2021 C3 Catalina 2021 March 06 23.01 UT, 12 x 120 sec, ORION OPTICS AG16 0.4-m f/3.8, SBIG STL6303E, B96 BRIXIIS Observatory Kruibeke Belgium
Erik Bryssinck
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